Anyone else feel exhaustion?

Im trying to figure out if its a health issue or just effects of years of being in and abusive relationship but im so tired!

I kicked my ex out 3 months ago and its been a lot of figuring things and being worried about finances and everything. Y'all know what i mean.

I usually dont have problems working through the day, staying up and getting a solid 6-9 hours sleep. But atm im sleeping 10-18 hours a day and i wake up feeling tired.

Its only been this week, but i need to know, has anyone else gone through this? How did you break it?